tyroscope. Draw the phase portrait of the system, and determine the system's stability? p+a 句
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- moodle.nct.edu.om/mod/quiz/attempt.php?attermpt=6123858&.cmid 63002#question-96 Portal When the load on a series generator is decreased, then the flux produced will be increased. Select one: O True in O False The accelerating anode in CRO is also called as positive electrode. Select one: O True O False MIEE2110M The neutral current in an unbalanced star connected system is not equal to 33°C Sunny hp5-Synchronous generator ,50 HZ have induced emf of 1.2 pu is connected to an infinite bus of 1 pu voltage .The maximum power that can be transferred if the reactance of generator is 0.2 pu and the rest of the system have a reactance of 0.4 pu is. a) 3pu b) 2pu c) Ipu d) 4puProblem 2 The cylindrical machine the following parameters Lss = 0.15 H Ly, = 0.06 H Lsr = 0.08cos0 H The rotor is driven at 3600 rpm. If the stator winding carries a current of 5 A (rms) at 60 Hz, determine the instantaneous voltage and rms voltage induced in the rotor coil.
- 14 If the induction electrical machine operates at slip s = - 0,1 the mode of operation is * O generator O motor O electromagnetic brakeDirectional Overcurrent Relay Detailed Explanation1. A technician is removing an air line from a robot's vertical pneumatic cylinder. He or she is probablyA. bleeding oil from the system.B. equalizing air pressure in the cylinder.C. checking the cylinder and solenoid for leaks.D. looking for signs of water. qual a opcao correta, b, c or d
- The frequency of voltage generated in SG depends on: Select one: a. Field current O b. Number of poles c. number of poles and speed rotation d. Rotor speed е. Number of poles, speed rotation and type of winding- A Dc shunt generator produces 445 A at 250 V, the resistance of shunt field circuit and armature circuit are 50 Q and 0.025 Q respectively. The armature voltage drop will be* O a) 5 V О Б) 22.5 V O c) 11.25 V O d) 15 VFor, z=0.05 and Wn= 10 : Peak amplitude = 1.85 Rise Time = 0.108 * Settling time = 7.6 seconds true False The peak time is related to the largest time constant of the control system True False For damping ratio greater than one, the rise time is considered as 10% to 90% of its final value True False
- 18 The voltage between brushes x and y is 240 V in the generator shown in Fig. 38. Why can we say that the voltage between segments 3 and 4 must be greater than 40 V?Match the following A cathode Choose... electrodynamometer instrument Choose... In single phase energy meter, is placed at the edge of Aluminum disc, which controls the speed of the disc. O series magnet O brake magnet O shunt magnet O M type magnetWhat kind of current does a synchronous generator with an excessively increased excitation current supply to the network? A) capacitive current B) ohmic current C) apparent current D) inductive current